SQUARE D
Square D QO235 35 A 2-Pole Plug-In Circuit Breaker
A 35 A two-pole plug-in breaker rated 120/240 V AC with a 10 kA interrupting capacity for QO load centres
- TypeCircuit Breakers
- Protects two 120/240V AC circuits with 35 A rating
- Plug-in mounting fits QO load centres without tools
- 10 kA interrupting rating handles high fault currents
- Compact 3.12 × 1.5 × 2.91 in frame saves panel space
- Operates reliably up to 104 °F ambient temperature
Application & Fit
The Square D QO235 is a 35 A two-pole plug-in circuit breaker rated for 120/240 V AC and 48 V DC. It is designed for QO load centers and NQ panelboards using a 100 A frame size. The standard paddle actuator and lug terminals provide straightforward installation for qualified electricians.
Who It Suits
This breaker suits installations requiring 35 A overcurrent protection on a single-phase 120/240 V AC supply within compatible QO-series panels. It is not for panels outside the QO or NQ series, for DC systems above 48 V, or for applications needing a higher interrupting rating than 10 kA at 120/240 V AC.
Build Integration
The unit plugs directly into QO load centers, occupying two pole spaces with a 3.12 in length, 1.5 in width and 2.91 in depth. Its 100 A frame size aligns with standard QO bus bars, freeing the installer from sourcing adaptors. Minimum operating temperature is rated at 104 °F.
Highlights
- Protects two 120/240V AC circuits with 35 A rating
- Plug-in mounting fits QO load centres without tools
- 10 kA interrupting rating handles high fault currents
- Compact 3.12 × 1.5 × 2.91 in frame saves panel space
- Operates reliably up to 104 °F ambient temperature
Specifications
| Brand | Square D |
|---|---|
| Model | QO235 |
| Type | Circuit Breakers |
Questions about this item
Which load-center series must I already have for this QO235 breaker to plug in?
It fits Square D QO load centres and NQ panelboards; the frame size is 100 A and the mounting style is plug-in.
Will this 35 A two-pole breaker coordinate with an existing 100 A QO main breaker in the same panel?
Yes, the 10 kA interrupting rating at 120/240 V AC is designed to coordinate with standard QO mains up to 100 A.
How can I confirm the breaker is operating correctly after installation?
Switch the paddle actuator to ON, measure 120/240 V AC across the two poles with a multimeter, and verify the lug terminals are torqued to the panelboard specification.
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